MPC8313CZQADDC Freescale Semiconductor, MPC8313CZQADDC Datasheet - Page 1051

• Manufacturer Part Number: MPC8313CZQADDC
• Description: Microprocessors - MPU 8313 REV2.2 PB NO EN EXT
• Manufacturer: Freescale Semiconductor

Specifications of MPC8313CZQADDC

• Processor Series: MPC8313
• Core: e300
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 133 MHz
• Program Memory Size: 16 KB
• Data Ram Size: 16 KB
• Interface Type: I2C
• Mounting Style: SMD/SMT
• Package / Case: PBGA
• Number Of Programmable I/os: 32
• Number Of Timers: 4

The USB DR module includes DCD software called the USB 2.0 Device API. The device API provides
an easy to use Application Program Interface for developing device (peripheral) applications. The device
API incorporates and abstracts for the application developer all of the elements of the program interface.
16.7.1
The device Endpoint Queue Head (dQH) is where all transfers are managed. The dQH is a 48-byte data
structure, but must be aligned on 64-byte boundaries. During priming of an endpoint, the dTD (device
transfer descriptor) is copied into the overlay area of the dQH, which starts at the nextTD pointer DWord
and continues through the end of the buffer pointers DWords. After a transfer is complete, the dTD status
DWord is updated in the dTD pointed to by the currentTD pointer. While a packet is in progress, the
overlay area of the dQH is used as a staging area for the dTD so that the Device Controller can access
needed information with little minimal latency.
Freescale Semiconductor
ENDPOINTLISTADDR
32 Elements
Endpoint Queue Head
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
Up to
Figure 16-60. Endpoint Queue Head Organization
Endpoint QH 1—Out
Endpoint QH 0—Out
Endpoint QH 0—In
Endpoint Queue Heads
•
•
•
Transfer
Pointer
Buffer
Transfer Buffer Pointer
Endpoint Transfer Descriptor
Transfer Buffer Pointer
Transfer
Buffer
Transfer
Buffer
Universal Serial Bus Interface
Transfer Buffer Pointer
Transfer
Transfer
Buffer
Buffer
16-123